S-YGH52 - O'Hara

Diagram n (λ)

n calculation

Diagram τ (λ)

τ calculation

Analogue search

Main parameters
n_d = 1.786499 n_e = 1.790246	V_d = 50.00 V_e = 49.75	n_F - n_C = 0.015729 n_F' - n_C' = 0.015882	Coloring: 0.31 - 0.39 mkm.

Type: Schott
Spectral range: 0.3650146 - 0.85211 mkm.
C1 = 3.1224406 C2 = -0.015600077 C3 = 0.023832255 C4 = 0.00072563954 C5 = -0.000030563799 C6 = 0.0000020883401

Refraction index
n _2.3254	-----
n _1.9701	-----
n _1.5296	-----
n _1.06	-----
n _t	-----
n _s	1.773482
n _r	1.779072
n _C	1.781753
n _C'	1.782506
n _0.6328	1.783210
n _D	1.786360
n _d	1.786499
n _e	1.790246
n _F	1.797483
n _F'	1.798388
n _g	1.806155
n _h	1.813404
n _i	1.825874
n _0.3341	-----
n _0.3126	-----
n _0.2967	-----
n _0.2804	-----
n _0.2483	-----

Relative partial dispertion
P_C,t	-----
P_C,A'	0.3407
P_d,C	0.3017
P_e,C	0.5399
P_g,d	1.2496
P_g,F	0.5513
P_h,g	0.4608
P_i,g	1.2536
P_C',t	-----
P_e,C'	0.4920
P_F',e	0.5176
P_i,F'	1.7474

transmittance: 10 mm
τ_0.38	0.914
τ_0.39	0.945
τ_0.4	0.961
τ_0.42	0.976
τ_0.44	0.983
τ_0.46	0.988
τ_0.48	0.993
τ_0.5	0.995
τ_0.55	0.996
τ_0.6	0.996
τ_0.65	0.995
τ_0.7	0.995

Poisson coef.: 0.294
Rigidity: 475 Pa*10⁸
Knoop hardness: 720
Abrasion: 60

Climatic resistance: 1
Resistance to acids: 4
Phosphate resistance: 1

Temperature coefficient of linear expansion
Temp. range, C	Value, 1/C*10^-7
-30 ~ 70	63
100 ~ 300	77

Temperature coefs. of n_rel
Temp. range, C	Wave length, mkm.	Value, 1/C*10^-6
-40 ~ -20	t	3.1
-20 ~ 0	t	3.1
0 ~ 20	t	3.2
20 ~ 40	t	3.3
40 ~ 60	t	3.6
60 ~ 80	t	3.9
-40 ~ -20	C'	3.8
-20 ~ 0	C'	3.8
0 ~ 20	C'	3.9
20 ~ 40	C'	4
40 ~ 60	C'	4.2
60 ~ 80	C'	4.5
-40 ~ -20		3.8
-20 ~ 0		3.8
0 ~ 20		3.9
20 ~ 40		4.1
40 ~ 60		4.3
60 ~ 80		4.6
-40 ~ -20	D	4
-20 ~ 0	D	4
0 ~ 20	D	4.1
20 ~ 40	D	4.3
40 ~ 60	D	4.5
60 ~ 80	D	4.7
-40 ~ -20	e	4.1
-20 ~ 0	e	4.2
0 ~ 20	e	4.3
20 ~ 40	e	4.5
40 ~ 60	e	4.7
60 ~ 80	e	5
-40 ~ -20	F	4.6
-20 ~ 0	F	4.7
0 ~ 20	F	4.8
20 ~ 40	F	5
40 ~ 60	F	5.2
60 ~ 80	F	5.4
-40 ~ -20	g	5.1
-20 ~ 0	g	5.2
0 ~ 20	g	5.3
20 ~ 40	g	5.5
40 ~ 60	g	5.8
60 ~ 80	g	6